Here's How Mark Zuckerberg Spent His 30th Birthday
<span><img style="float:right;" src="http://static4.businessinsider.com/image/54820a1aecad04c40b4d3b9a-1200-924/mark-zuckerberg-smiling-9.jpg" border="0" alt="mark zuckerberg smiling">Mark Zuckerberg may be worth more than $33 billion, but for his 30th birthday this May, he didn't even throw a party.</span>
<span style="line-height: 1.5em;">Instead, he flew to New Jersey to watch his younger sister defend her Ph.D. in classics at Princeton, Lev Grossman reports in Time. </span>
This isn't the first time Zuckerberg has shunned extravagance.
Despite his billions, he reportedly <span>drives an Acura because "it's safe and not ostentatious," and his understated wardrobe of a plain gray t-shirt or hoodie has been well documented. </span>
<span>He married his longtime <span>girlfriend Priscilla Chan outside in his backyard, and the couple even enjoyed <span>McDonald's on their Italian honeymoon. </span></span></span>
One thing Zuckerberg will spend money on, however, is philanthropy. He donated a significant amount of money to <span>Newark, New Jersey's public-school system and</span><span style="line-height: 1.5em;"> was named the most charitable philanthropist in 2013 after donating a half-billion dollars of Facebook stock to the Silicon Valley Community Foundation.</span>
<span style="line-height: 1.5em;">He and his wife Priscilla also personally donated $25 million to the Centers for Disease Control Foundation in October to help fight Ebola. </span>
<span style="line-height: 1.5em;">His largest and most ambitious charitable initiative is Internet.org, which aims to get every single human being online. </span>
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